Security record
RMBS
Rambus Inc. · Technology · Semiconductors
139Tracked holders
+6Δ holders
78.25MShares held
$10.35BReported value
+12New positions
−7Exits
Momentum inputs (comparable managers):
holder breadth +4.5% ·
share flow +3.1% ·
net new positions +3.6%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 139 | +6 | 78.25M | $10.35B | +12 | −7 |
| Q1 2026 | 137 | -4 | 75.08M | $6.44B | +5 | −10 |
| Q4 2025 | 140 | 0 | 82.50M | $7.59B | +2 | −1 |
| Q3 2025 | 21 | +3 | 52.09M | $5.43B | +3 | −1 |
| Q2 2025 | 16 | 0 | 44.72M | $2.86B | +1 | −1 |
| Q1 2025 | 13 | -3 | 20.22M | $1.05B | — | −3 |
| Q4 2024 | 16 | +1 | 18.03M | $953.00M | +1 | — |
| Q3 2024 | 14 | +2 | 9.95M | $420.01M | +2 | — |
| Q2 2024 | 12 | — | 12.20M | $716.28M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 13.96M | -14.4% | $1.85B | 0.0% | ▼ Trim | 5 | SEC ↗ ×18 |
| 2 | Fidelity (FMR) ✦ | 10.46M | +215.2% | $1.39B | 0.1% | ▲ Add | 5 | SEC ↗ ×6 |
| 3 | Invesco Ltd. | 6.63M | +2.0% | $880.39M | 0.1% | ▲ Add | 3 | SEC ↗ ×8 |
| 4 | Vanguard Capital Management Llc | 4.87M | +1.0% | $647.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | State Street Global Advisors ✦ (passive) | 3.92M | -10.5% | $519.50M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 6 | T. Rowe Price ✦ | 3.33M | -1.2% | $442.62M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 7 | Geode Capital Management ✦ (passive) | 2.30M | -26.5% | $305.06M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 8 | JPMorgan Chase ✦ | 2.10M | +14.4% | $260.99M | 0.0% | ▲ Add | 4 | SEC ↗ ×9 |
| 9 | Dimensional Fund Advisors Lp | 1.72M | -4.2% | $228.19M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 10 | Swedbank AB | 1.65M | +5.3% | $218.56M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 11 | Norges Bank ✦ (passive) | 1.53M | New | $203.44M | 0.0% | New | 1 | SEC ↗ |
| 12 | Morgan Stanley ✦ | 1.44M | +19.1% | $191.71M | 0.0% | ▲ Add | 4 | SEC ↗ ×19 |
| 13 | Neuberger Berman Group LLC | 1.31M | +0.7% | $173.45M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 14 | Bank Of America Corp /De/ | 1.22M | -10.5% | $161.77M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 15 | AQR Capital Management ✦ | 1.21M | -3.1% | $152.48M | 0.1% | ▼ Trim | 9 | SEC ↗ ×8 |
| 16 | Charles Schwab Investment… | 1.11M | -16.4% | $147.23M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 17 | Goldman Sachs Group ✦ | 960.88K | +4.2% | $127.55M | 0.0% | ▲ Add | 4 | SEC ↗ ×3 |
| 18 | Northern Trust Corp | 949.11K | -28.9% | $125.99M | 0.0% | ▼ Trim | 3 | SEC ↗ ×6 |
| 19 | Bank of New York Mellon Corp | 828.23K | +6.2% | $109.94M | 0.0% | ▲ Add | 3 | SEC ↗ ×17 |
| 20 | Manufacturers Life Insurance… | 797.20K | +678.5% | $105.82M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 21 | D. E. Shaw & Co. ✦ | 739.70K | +5676.7% | $98.19M | 0.1% | ▲ Add | 9 | SEC ↗ ×2 |
| 22 | Fisher Asset Management ✦ | 705.85K | -4.4% | $93.69M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 23 | Barclays Plc | 645.97K | -41.0% | $85.75M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 24 | Raymond James Financial Inc | 603.87K | -23.6% | $80.16M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 25 | Clearbridge Investments, LLC | 589.64K | +1.1% | $78.27M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 26 | Susquehanna International Group, Llp | 555.93K | +547.8% | $73.79M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 27 | Citigroup Inc | 532.40K | -47.2% | $70.67M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 28 | Nuveen, LLC | 496.42K | -44.4% | $65.90M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 29 | Millennium Management ✦ | 472.82K | +234.6% | $62.76M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 30 | Loomis Sayles & Co L P | 470.93K | -28.6% | $62.51M | 0.1% | ▼ Trim | 3 | SEC ↗ ×2 |
| 31 | Hrt Financial Lp | 430.15K | New | $57.10M | 0.1% | New | 1 | SEC ↗ ×2 |
| 32 | Principal Financial Group Inc | 429.95K | +15.1% | $57.07M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 33 | Wellington Management ✦ | 418.53K | -51.1% | $55.56M | 0.0% | ▼ Trim | 9 | SEC ↗ ×4 |
| 34 | Citadel Advisors ✦ | 400.15K | +2325.9% | $53.12M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 35 | UBS Group AG | 373.59K | -60.9% | $49.59M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 36 | Canada Pension Plan Investment Board | 330.65K | +65.8% | $43.89M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 37 | Ameriprise Financial Inc | 321.19K | -67.1% | $42.64M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 38 | Rhumbline Advisers | 296.92K | -7.1% | $39.41M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 39 | UBS AM, a distinct business unit of… | 289.02K | +20.1% | $38.36M | 0.0% | ▲ Add | 3 | SEC ↗ ×10 |
| 40 | Caisse De Depot Et Placement Du… | 282.58K | -37.0% | $37.51M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 41 | Nomura Asset Management… | 271.98K | -16.8% | $36.10M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 42 | Sei Investments Co | 261.83K | -23.0% | $34.76M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 43 | First Trust Advisors Lp | 258.31K | -15.9% | $34.29M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 44 | Allianz Asset Management GmbH | 254.88K | +186.0% | $33.83M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 45 | Mackenzie Financial Corp | 242.19K | +351.1% | $32.15M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 46 | California Public Employees… | 230.00K | +1.2% | $30.53M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 47 | Two Sigma Investments ✦ | 222.92K | +188.0% | $29.59M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 48 | Bnp Paribas Financial Markets | 220.81K | -16.5% | $29.31M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 49 | Swiss National Bank | 217.00K | +1.9% | $28.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 50 | Victory Capital Management Inc | 208.06K | +13.7% | $27.62M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | Tidal Investments LLC | 180.83K | +44.3% | $24.00M | 0.1% | ▲ Add | 3 | SEC ↗ ×3 |
| 52 | Duquesne Family Office ✦ | 173.00K | New | $22.96M | 0.5% | New | 1 | SEC ↗ |
| 53 | Royal Bank Of Canada | 169.48K | +473.7% | $22.50M | 0.0% | ▲ Add | 3 | SEC ↗ ×8 |
| 54 | Russell Investments Group, Ltd. | 162.18K | +24.9% | $21.53M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 55 | Tudor Investment Corp Et Al | 157.16K | New | $20.86M | 0.1% | New | 1 | SEC ↗ |
| 56 | Mirae Asset Global Investments Co.… | 154.87K | +15.3% | $20.56M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 57 | Legal & General Group Plc | 153.86K | -3.0% | $20.39M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 58 | Osaic Holdings, Inc. | 137.17K | -31.3% | $18.21M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 59 | Wcm Investment Management, Llc | 130.99K | -20.6% | $16.23M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 60 | Creative Planning | 120.19K | +17.5% | $15.95M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 61 | Assetmark, Inc | 119.88K | -18.8% | $15.91M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 62 | Nomura Holdings Inc | 101.06K | New | $13.41M | 0.1% | New | 1 | SEC ↗ |
| 63 | Alliancebernstein L.P. | 155.14K | -41.9% | $13.35M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 64 | Voya Investment Management Llc | 99.76K | -87.0% | $13.24M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 65 | Nordea Investment Management Ab | 104.48K | -3.3% | $13.12M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 66 | Rockefeller Capital Management L.P. | 96.05K | +0.6% | $12.75M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 67 | Jane Street Group, Llc | 95.01K | +1651.1% | $12.61M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 68 | State Of Wisconsin Investment Board | 94.19K | -1.2% | $12.50M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 69 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 94.03K | -33.4% | $12.48M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 70 | Qube Research & Technologies Ltd | 89.54K | New | $11.89M | 0.0% | New | 1 | SEC ↗ |
| 71 | Lazard Asset Management Llc | 87.30K | -14.2% | $11.59M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 72 | State Board Of Administration Of… | 84.93K | +219.5% | $11.27M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 73 | Wells Fargo & Company/Mn | 83.66K | -33.0% | $11.10M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 74 | LPL Financial LLC | 82.34K | -6.4% | $10.93M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 75 | Franklin Resources Inc | 74.03K | -77.1% | $9.83M | 0.0% | ▼ Trim | 3 | SEC ↗ ×8 |
| 76 | Envestnet Asset Management Inc | 67.31K | -25.8% | $8.93M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 77 | Captrust Financial Advisors | 64.45K | +24.4% | $8.55M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | Assenagon Asset Management S.A. | 63.79K | +34.2% | $8.47M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 79 | New York State Common Retirement… | 57.09K | +33.0% | $7.58M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 80 | Marshall Wace ✦ | 56.42K | +921.1% | $7.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 81 | American Century Companies Inc | 51.12K | +12.4% | $6.79M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 82 | PRIMECAP Management ✦ | 47.50K | 0.0% | $6.31M | 0.0% | Held | 9 | SEC ↗ |
| 83 | Hsbc Holdings Plc | 48.01K | +658.6% | $6.11M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 84 | Zurcher Kantonalbank (Zurich… | 44.55K | -0.7% | $5.91M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 85 | Universal- Beteiligungs- und… | 43.88K | -33.5% | $5.83M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 86 | Man Group plc | 38.61K | -72.2% | $5.13M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 87 | Federated Hermes, Inc. | 35.61K | -83.5% | $4.73M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 88 | Pictet Asset Management Holding SA | 30.40K | -30.2% | $4.04M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 89 | Mercer Global Advisors Inc /Adv | 29.16K | +175.5% | $3.87M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 90 | Cerity Partners LLC | 26.72K | +4.0% | $3.55M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 91 | Quantinno Capital Management LP | 26.35K | +2.8% | $3.50M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 92 | Cetera Investment Advisers | 25.56K | -10.9% | $3.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 93 | Baird Financial Group, Inc. | 25.47K | +5.7% | $3.38M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 94 | BNP Paribas Asset Management… | 24.72K | -50.8% | $3.28M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 95 | Fifth Third Bancorp | 24.42K | -10.8% | $3.24M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 96 | Deutsche Bank Ag\ | 23.57K | -78.2% | $3.13M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 97 | Mariner, LLC | 19.93K | +3.4% | $2.65M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 98 | Prudential Financial Inc | 18.82K | -78.9% | $2.50M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 99 | Stifel Financial Corp | 17.79K | -31.4% | $2.36M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 100 | Pacer Advisors, Inc. | 15.37K | -58.5% | $2.04M | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $203.44M | 0.0% |
| Hrt Financial Lp | $57.10M | 0.1% |
| Duquesne Family Office | $22.96M | 0.5% |
| Tudor Investment Corp Et Al | $20.86M | 0.1% |
| Nomura Holdings Inc | $13.41M | 0.1% |
| Qube Research & Technologies… | $11.89M | 0.0% |
Exited
| HighTower Advisors, LLC | $15.62M | was 0.0% |
| Td Asset Management Inc | $10.35M | was 0.0% |
| Holocene Advisors, LP | $4.27M | was 0.0% |
| Amundi | $1.41M | was 0.0% |
| Bamco Inc /Ny/ | $267,639 | was 0.0% |
| Optiver Holding B.V. | $41,294 | was 0.0% |
| Group One Trading Llc | $32,003 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 549 holders, 100.74M shares, $7.93B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Sep 22
KISSNER CHARLES
Director · 5.00K sh · $525,000
Aug 07
KISSNER CHARLES
Director · 5.00K sh · $504,600
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Jul 29
SC 13G/A — BlackRock, Inc.
Jun 05
SC 13G — FMR LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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